aboutsummaryrefslogtreecommitdiff
path: root/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
diff options
context:
space:
mode:
Diffstat (limited to 'pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java')
-rw-r--r--pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java170
1 files changed, 136 insertions, 34 deletions
diff --git a/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java b/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
index d1337ce2..8095911d 100644
--- a/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
+++ b/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
@@ -39,8 +39,10 @@ import java.util.Calendar;
import java.util.List;
import org.apache.commons.io.IOUtils;
+import org.apache.pdfbox.cos.COSArray;
import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
+import org.apache.pdfbox.cos.COSInteger;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.cos.COSString;
import org.apache.pdfbox.exceptions.COSVisitorException;
@@ -50,8 +52,13 @@ import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageNode;
import org.apache.pdfbox.pdmodel.PDResources;
+import org.apache.pdfbox.pdmodel.common.PDNumberTreeNode;
+import org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure.PDAttributeObject;
+import org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure.PDStructureElement;
+import org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure.PDStructureTreeRoot;
import org.apache.pdfbox.pdmodel.graphics.color.PDOutputIntent;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDJpeg;
+import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationWidget;
import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature;
import org.apache.pdfbox.pdmodel.interactive.digitalsignature.SignatureOptions;
import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
@@ -105,6 +112,8 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
PDFASSignatureInterface genericSigner) throws PdfAsException {
String fisTmpFile = null;
+ PDFAsVisualSignatureProperties properties=null;
+
if (!(genericPdfObject instanceof PDFBOXObject)) {
// tODO:
throw new PdfAsException();
@@ -152,8 +161,8 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
logger.debug("Placeholder Profile set to: "
+ signaturePlaceholderData.getProfile());
requestedSignature
- .setSignatureProfileID(signaturePlaceholderData
- .getProfile());
+ .setSignatureProfileID(signaturePlaceholderData
+ .getProfile());
}
tablePos = signaturePlaceholderData.getTablePos();
@@ -165,7 +174,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
PDSignature signature = new PDSignature();
signature.setFilter(COSName.getPDFName(signer.getPDFFilter())); // default
- // filter
+ // filter
signature.setSubFilter(COSName.getPDFName(signer
.getPDFSubFilter()));
@@ -313,7 +322,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
requestedSignature.setSignaturePosition(position);
- PDFAsVisualSignatureProperties properties = new PDFAsVisualSignatureProperties(
+ properties = new PDFAsVisualSignatureProperties(
pdfObject.getStatus().getSettings(), pdfObject,
(PdfBoxVisualObject) visualObject,
positioningInstruction, signatureProfileSettings);
@@ -348,7 +357,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
logger.info("Placeholder name: "
+ signaturePlaceholderData
- .getPlaceholderName());
+ .getPlaceholderName());
COSDictionary xobjectsDictionary = (COSDictionary) page
.findResources().getCOSDictionary()
.getDictionaryObject(COSName.XOBJECT);
@@ -356,10 +365,10 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
.getPlaceholderName(), img);
xobjectsDictionary.setNeedToBeUpdate(true);
page.findResources().getCOSObject()
- .setNeedToBeUpdate(true);
+ .setNeedToBeUpdate(true);
logger.info("Placeholder name: "
+ signaturePlaceholderData
- .getPlaceholderName());
+ .getPlaceholderName());
} finally {
IOUtils.closeQuietly(is);
}
@@ -397,23 +406,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
}
}
- // if (signatureProfileSettings.isPDFA()) { // Check for
- // PDF-UA
- // PDDocumentCatalog root = doc.getDocumentCatalog();
- // PDStructureTreeRoot treeRoot =
- // root.getStructureTreeRoot();
- // if (treeRoot != null) { // Handle as PDF-UA
- // logger.info("Tree Root: {}", treeRoot.toString());
- // PDStructureElement docElement = PDFBoxTaggingUtils
- // .getDocumentElement(treeRoot);
- // PDStructureElement sigBlock = new PDStructureElement(
- // "Table", docElement);
- // root.getCOSObject().setNeedToBeUpdate(true);
- // docElement.getCOSObject().setNeedToBeUpdate(true);
- // treeRoot.getCOSObject().setNeedToBeUpdate(true);
- // sigBlock.setTitle("Signature Table");
- // }
- // }
+
options.setPage(positioningInstruction.getPage());
options.setVisualSignature(properties.getVisibleSignature());
@@ -433,25 +426,35 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
sigFieldName = sigFieldName + count;
PDAcroForm acroFormm = doc.getDocumentCatalog().getAcroForm();
+
+ // PDStructureTreeRoot pdstRoot = doc.getDocumentCatalog().getStructureTreeRoot();
+ // COSDictionary dic = doc.getDocumentCatalog().getCOSDictionary();
+ // PDStructureElement el = new PDStructureElement("Widget", pdstRoot);
+
+
+
+ PDSignatureField signatureField = null;
if (acroFormm != null) {
@SuppressWarnings("unchecked")
List<PDField> fields = acroFormm.getFields();
- PDSignatureField signatureField = null;
+
if (fields != null) {
for (PDField pdField : fields) {
if (pdField != null) {
if (pdField instanceof PDSignatureField) {
PDSignatureField tmpSigField = (PDSignatureField) pdField;
+
if (tmpSigField.getSignature() != null
&& tmpSigField.getSignature()
- .getDictionary() != null) {
+ .getDictionary() != null) {
if (tmpSigField
.getSignature()
.getDictionary()
.equals(signature
.getDictionary())) {
signatureField = (PDSignatureField) pdField;
+
}
}
}
@@ -462,12 +465,111 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
}
if (signatureField != null) {
- signatureField.setPartialName(sigFieldName);
+ signatureField.setPartialName(sigFieldName);
+ }
+ if(properties!=null){
+ signatureField.setAlternateFieldName(properties.getAlternativeTableCaption());
+ }else{
+ signatureField.setAlternateFieldName(sigFieldName);
}
} else {
logger.warn("Failed to name Signature Field! [Cannot find acroForm!]");
}
+ // PDF-UA
+ logger.info("Adding pdf/ua content.");
+ try{
+ PDDocumentCatalog root = doc.getDocumentCatalog();
+ PDStructureTreeRoot treeRoot = root.getStructureTreeRoot();
+
+ logger.info("Tree Root: {}", treeRoot.toString());
+ List<Object> kids = treeRoot.getKids();
+
+ if(kids==null){
+ logger.info("No kid-elements in structure tree Root, maybe not PDF/UA document");
+ }
+
+ PDStructureElement docElement = null;
+ for(Object k: kids){
+ if(k instanceof PDStructureElement){
+ docElement=(PDStructureElement) k;
+ break;
+ // if(((PDStructureElement) k).getStructureType().equals("Document")){
+ // docElement=(PDStructureElement) k;
+ // }
+ }
+ }
+
+ PDStructureElement sigBlock = new PDStructureElement(
+ "Form", docElement);
+
+ //create object dictionary and add as child element
+ COSDictionary objectdic= new COSDictionary();
+ objectdic.setName("Type", "OBJR");
+ objectdic.setItem("Pg", signatureField.getWidget().getPage());
+ objectdic.setItem("Obj", signatureField.getWidget());
+
+ List<Object> l = new ArrayList<Object>();
+ l.add(objectdic);
+ sigBlock.setKids(l);
+
+ sigBlock.setTitle("Signature Table");
+ sigBlock.setParent(docElement);
+ docElement.appendKid(sigBlock);
+
+ //Create and add Attribute dictionary to mitigate PAC warning
+ COSDictionary sigBlockDic = (COSDictionary) sigBlock.getCOSObject();
+ COSDictionary sub = new COSDictionary();
+
+ sub.setName("O", "Layout");
+ sub.setName("Placement", "Block");
+ sigBlockDic.setItem(COSName.A, sub);
+ sigBlockDic.setNeedToBeUpdate(true);
+
+
+ //Modify number tree
+ PDNumberTreeNode ntn = treeRoot.getParentTree();
+ if(ntn==null){
+ ntn = new PDNumberTreeNode(objectdic, null);
+ logger.info("No number-tree-node found!");
+ }
+
+ COSDictionary ntndic=ntn.getCOSDictionary();
+ COSArray ntndicnumbersarray = (COSArray)ntndic.getDictionaryObject(COSName.NUMS);
+ int arrindex = ntndicnumbersarray.size();
+ int treeindex = arrindex/2;
+
+ ntndicnumbersarray.add(arrindex, COSInteger.get(treeindex));
+ ntndicnumbersarray.add(arrindex+1, sigBlock.getCOSObject());
+
+ treeRoot.setParentTree(ntn);
+ treeRoot.setParentTreeNextKey(treeindex+1);
+
+ //setStructureParent
+ PDAnnotationWidget widg=signatureField.getWidget();
+ widg.setStructParent(treeindex);
+
+ //add the Tabs /S Element for Tabbing through annots
+ PDPage p = signatureField.getWidget().getPage();
+ p.getCOSDictionary().setName("Tabs", "S");
+ p.getCOSObject().setNeedToBeUpdate(true);
+
+ ntndic.setNeedToBeUpdate(true);
+ sigBlock.getCOSObject().setNeedToBeUpdate(true);
+ treeRoot.getCOSObject().setNeedToBeUpdate(true);
+ objectdic.getCOSObject().setNeedToBeUpdate(true);
+ docElement.getCOSObject().setNeedToBeUpdate(true);
+
+
+ }catch(Throwable e){
+ if (signatureProfileSettings.isPDFUA()==true){
+ logger.error("Could not create PDF-UA conform document!");
+ throw new PdfAsException("error.pdf.sig.pdfua.1", e);
+ }else{
+ logger.info("Could not create PDF-UA conform signature");
+ }
+ }
+
if (requestedSignature.isVisual()) {
// if(requestedSignature.getSignaturePosition().)
@@ -559,7 +661,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
// Ignore
}
}
-
+
if(fisTmpFile != null) {
helper.deleteFile(fisTmpFile);
}
@@ -609,7 +711,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
public Image generateVisibleSignaturePreview(SignParameter parameter,
java.security.cert.X509Certificate cert, int resolution,
OperationStatus status, RequestedSignature requestedSignature)
- throws PDFASError {
+ throws PDFASError {
try {
PDFBOXObject pdfObject = (PDFBOXObject) status.getPdfObject();
@@ -693,11 +795,11 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
graphics.drawImage(outputImage, 0, 0, cutOut.getWidth(), cutOut
.getHeight(), (int) (1 * factor), (int) (outputImage
- .getHeight() - ((position.getHeight() + 1) * factor)),
- (int) ((1 + position.getWidth()) * factor),
- (int) (outputImage.getHeight()
- - ((position.getHeight() + 1) * factor) + (position
- .getHeight() * factor)), null);
+ .getHeight() - ((position.getHeight() + 1) * factor)),
+ (int) ((1 + position.getWidth()) * factor),
+ (int) (outputImage.getHeight()
+ - ((position.getHeight() + 1) * factor) + (position
+ .getHeight() * factor)), null);
return cutOut;
} catch (PdfAsException e) {
logger.warn("PDF-AS Exception", e);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 01:51:33 +0000